Q. Which of the following molecules, has the largest bond angle around the central atom?
JIPMERJIPMER 1996
Solution:
$ {{H}_{2}}O $ has the largest bond angle among VIA group hydrides. The reason is the high electronegativity of oxygen atom due to which bonding electron pair remains closer to oxygen atom in $ {{H}_{2}}O $ molecule. Hence, the repulsion between bonding $ {{e}^{-}} $ is maximum in $ {{H}_{2}}O $ due to which the bond-angle is maximum (104.5°) in $ {{H}_{2}}O $ .
